Finding the Fourth Proportional to 17,978.96, 24,811.81 and 10,021.24

Step by Step Solution

1. Step 1: Write the proportion equation
   17,978.96 : 24,811.81 = 10,021.24 : x
2. Step 2: Convert to fraction form
   17,978.96/24,811.81 = 10,021.24/x
3. Step 3: Cross multiply
   17,978.96x = 24,811.81 × 10,021.24
4. Step 4: Simplify right side
   17,978.96x = 248,645,102.84
5. Step 5: Solve for x
   x = 248,645,102.84/17,978.96
6. Step 6: Final answer
   x = 13,829.78